Bogdan, Magdalena, Agnieszka Barańska, Bartłomiej Drop, Ewelina Firlej, Krzysztof Bartczak, and Mariola Janiszewska. “Efficiency As a Parameter for Assessing the Polish Healthcare System”. Journal of Education, Health and Sport 8, no. 4 (April 12, 2018): 141–146. Accessed April 1, 2025. https://apcz.umk.pl/JEHS/article/view/4945.